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Maidenhead locators are also commonly referred to as QTH locators, grid locators or grid squares, although the "squares" are distorted on any non-equirectangular cartographic projection. Use of the terms QTH locator and QRA locator was initially discouraged, as it caused confusion with the older QRA locator system.
The standard message is <callsign> + <4 character locator> + <dBm transmit power>; for example “K1ABC FN20 37” is a signal from station K1ABC in Maidenhead grid cell “FN20”, sending 37 dBm, or about 5.0 W (legal limit for 630 m). Messages with a compound callsign and/or 6 digit locator use a two-transmission sequence.
The expedition's goals were the same as other DXpeditions: [4] to contact as many amateur radio stations as possible from a remote location. [ 5 ] Bouvet Island is a 9.5-by-7-kilometre (5.9 by 4.3 mi) uninhabited volcanic island claimed and administered as a nature preserve by Norway . [ 6 ]
SOTA Mapping Project (SMP) is a website (www.sotamaps.org) offering mapping resources for radio amateurs participating in the Summits On The Air (SOTA) awards program. It aims to provide comprehensive mapping information in graphical form based on Google Maps on summits included in the program, for participants in the program as well as for the ...
The QRA locator, also called QTH locator in some publications, is an obsolete geographic coordinate system used by amateur radio operators in Europe before the introduction of the Maidenhead Locator System. As a radio transmitter or receiver location system the QRA locator is considered defunct, but may be found in many older documents.
Military Grid Reference System is the geocoordinate standard used by NATO militaries for locating points on Earth. Universal Transverse Mercator coordinate system is a map projection system for assigning coordinates to locations on the surface of the Earth. the Maidenhead Locator System, popular with radio operators.
An amateur radio propagation beacon is a radio beacon, whose purpose is the investigation of the propagation of radio signals. Most radio propagation beacons use amateur radio frequencies. They can be found on LF, MF, HF, VHF, UHF, and microwave frequencies. Microwave beacons are also used as signal sources to test and calibrate antennas and ...
Maidenhead was home to the amateur radio conference that agreed on the Maidenhead Locator System standard in 1980. It is located in grid square IO91pm . The average house price in Maidenhead in January 2021 was £540,940.